There's science around neuroplasticity that could explain this. I trust the newer studies over the older ones, since we've never before had access to so much different porn in all of human history. They all seem to say the same thing in different ways: that it's impossible to consume media without it affecting you in some way.

But for me, personally? Depends on the porn. I could never really get into the most popular videos because they're so degrading toward women. Being reminded of systemic violence and oppression is not what I need to get off. I wouldn't completely trust any guy who's into that kind of cock-choking, ass-ramming thing either.

I find the amateur stuff a little better because a lot of it is just attractive, voyeuristic couples having consentual sex. I can't help but feel happy for them and feel like they want me to be happy for them. It's sexily wholesome.

Then again, I have a few, very specific, unusual fetishes, and for that I love having access to the plethora of debauchery the internet provides. It's probably messing with my head in that my fantasies used to be vanilla and now they're not, but I'm not concerned since none of it is painful or non-consensual. The biggest problem would be finding a partner who's into the same things.